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B&Q£15.87Visit shop B&Q - All One Sink Trap With 135 Degree Swivel Nozzle -Wm12
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This McAlpine WM12 tubular swivel sink trap is designed for homeowners and plumbers needing to connect domestic appliances like dishwashers and washing machines to sink plumbing. Its key benefit is providing a reliable 75mm water seal to prevent unpleasant odours and wastewater backflow, with the added flexibility of a 135° swivel inlet for easy installation in tight spaces. A potential consideration is its specific 1.5" multifit outlet, which may require adapters for non-standard pipe sizes.
| Model Part Number | WM12 |
|---|---|
| Brand | McAlpine |
The 75mm water seal is a barrier of water held within the trap that prevents foul-smelling sewer gases from rising up through the waste pipe and entering your room.
This trap is specifically designed for appliance connections like washing machines and dishwashers. It is not typically used as the primary trap for a sink basin.
It means the outlet is designed to connect to standard 1.5-inch (approximately 38-40mm) diameter pipes. The 'multifit' aspect often implies it can accommodate minor variations or has a flexible sealing mechanism for common pipe sizes.
Simply push the end of the appliance's drain hose firmly into the 135° swivel inlet connection. Ensure it's a secure fit. Some hoses may benefit from a jubilee clip for extra security.
The water seal needs water to function. If the appliance is not used for extended periods, the water in the trap may evaporate. It's recommended to periodically run a small amount of water through the trap or use the appliance briefly to ensure the seal is maintained.
Typically, basic plumbing tools like a pipe cutter (if modifying waste pipe), sealant (if required for non-standard connections), and potentially pliers or a wrench for certain adapters might be needed. Hand-tightening is often sufficient for the trap's own connections.
Check that the 75mm water seal is present. If the trap has been dry for a long time, run water through it. Ensure the appliance discharge hose is fully inserted into the inlet and not kinked.
Check all connections at the inlet and outlet. Ensure they are clean and properly seated. If connections were over-tightened, they may need to be loosened slightly or re-sealed with appropriate plumbing sealant if necessary.
The inlet is designed for standard appliance hoses. If the fit is loose, consider using a jubilee clip or hose clamp. If the hose is too large, you may need an adapter for the appliance hose itself.
Ensure the trap is not blocked and that the connected waste pipe is clear. Check for any kinks in the appliance discharge hose or the trap's swivel mechanism.
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